Improvement in modes of securing chimneys to lamps



vE. BOWEN.

Lamp Chimney Holder No. 33,875. Patented Dec. 10, 1861.

N PETERS. Plzummhogmphr. wnshmgmn. D. CA

A UNITED STATES PATENT OFFICE.

EDVIN BOWEN, OF IWIERIDEN, CONNECTICUT.

IMPROVEMENT IN MODES OF SECURING CHIMNEYS TO LAMPS.

Specification forming part of Letters Patent No. 33,875, dated December10, 1861.

To @ZZ whom it may concern:

Be it known that I, EDWIN BOWEN, oi' Meriden, in the county of New Havenand State of Connecticut, have invented a new and Improved Mode ofSecuring Chimneys to Lamp- Tops; and I do hereby declare that thefollowing isa full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specification,in which- Figure l is a vertical section of' a lamp-top with myimprovement applied to it, or m, Fig. 2, indicating the plane ofsection; and Fig 2, a plan or top view of the same with the coneremoved.

Similar letters of reference indicate corresponding parts in the twoigures.

The objectof this invention is to obtain a fastening or catch which willadmit of the chimney being readily adjusted on the lamptop, and alsoreadily detached therefrom, the fastening or catch at the same timebeing capable of firmly securing the chimney to the lamp-top.

The invention consist-s in the employment or use of a slide placedhorizontally in the lamp-top and provided at one end with a hook orcatch, the slide having a spring applied to it near its center, and allsubstantially as hereinafter shown and described.

To enable those skilled in the art to fully understand and construct myinvention I will proceed to describe it.

A represents a lamp-top, which may be constructed in any of the formsnow used for chimney-lamps.

B is the wick-tube, and C is the cone or dehector.

D is a slide which is placed horizontally in the lamp-top A and has itsends passing through the side of the top A. One end ofthe slide D isbent in the form of a hook a and extends over the edge of the lamp-topand is then bent obliquely upward, as shown at b. (See Fig. l.) Theupper edge of the lamptop is notched, as shown at c, to admit of thehook a working or sliding over it a short distance below the other partsof the edge.

The central part of the slide D is of annular form, as shown at cX inFig. 2.

nular part cX encompasses the wick-tube B, and it is made suflcientlylarge in diameter to admit of a requisite movement or play of the slideD.

E is a spring, one end of which is attached to the wick-tube B. Theopposite end of this spring bears against the slide D and has a tendencyto keep the hook a of the slide inward to its fullest extent toward thecone or deflect-or C, as indicated by the arrow in Fig. 1.

The chimney, which is indicated by dotted lines in Fig. l, has the usualflange at its bottom, and when said chimney is pressed down on the top Athe catch a will be forced outward in consequence of the bottom of thechimney acting upon the oblique part b at the end of hook a, and thechimney is thereby allowed to descend to the base of the cone ordeflector C, on which base it rests, the spring E drawing the hook aover the flange of the chimney as soon as the flange passes below thepart b.

The hook, it will be seen, firmly secures the chimney on the lamp-top,the spring E causing it to press snugly against the chimney just overthe flange of the latter, the iiange at the Opposite side tting underlips d d, which project from the inner side of the lamp-top. In order torelease the chimney or detach it from the lamp-top A, all that isrequired is simply to press the thumb or finger against a button e atthe end of the slide opposite to that where the hook a is formed, inorder to throw out the hook d, free from the iiange of the chimney.

The advantage of this fastening or catch is that the slide D admits of ahorizontal movement of the hook a, and the latter is consequentlyallowed to work easily or freely, far more so than the ordinary springcatch hitherto used. The invention also admits of the chimney being moreeasily released from the la1np-top than hitherto, and the device, it isbelieved, is not so liable to become deranged by use orinj ured by wearas those constructed on the old plan.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The slide D, fitted horizontally in the lamptop A, provided with a hookd at one end, and having a spring E bearing or acting against it withinthe top, substantially as and for the purpose set forth.

EDWIN BOWEN. I/Vtnesses:

E. A. HELsEY, L. E. COE.

